CN110076999A - A kind of chliorinated polyvinyl chloride U-PVC plate welding procedure - Google Patents
A kind of chliorinated polyvinyl chloride U-PVC plate welding procedure Download PDFInfo
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- CN110076999A CN110076999A CN201910405918.7A CN201910405918A CN110076999A CN 110076999 A CN110076999 A CN 110076999A CN 201910405918 A CN201910405918 A CN 201910405918A CN 110076999 A CN110076999 A CN 110076999A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
- B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
- B29C65/12—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined and welding bar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
This application discloses a kind of chliorinated polyvinyl chloride U-PVC plate welding procedure, following steps: step S1: obtaining the first plate body and the second plate body of U-PVC material, selects welding rod, and carry out welding preparation, opens up groove to the first plate body；Step S2: setting welding gun outlet temperature configures tip, and the first plate body is carried out spot welding with the second plate body and is fixed；Step S3: Hot-blast Heating is passed through to welding rod and the first plate body and the second plate body using welding gun, when the temperature close of welding rod and the first plate body and the second plate body, welding rod and groove are drawn close, butt welding item applies preset pressure, and the welding rod of softening part is pressed into the groove on slope and forms one layer of weld seam；Step S4: welding rod is cut off until welding terminates according to the mobile welding rod of pre-set velocity.Welding procedure provided herein heats welding rod and U-PVC plate body using hot wind, realizes the connection of two boards body, the welding suitable for large-sized structural parts water tank, it is ensured that welding quality obtains higher tensile strength, plasticity, toughness.
Description
Technical field
This application involves die treatment method fields, more particularly to a kind of chliorinated polyvinyl chloride U-PVC plate welding procedure.
Background technique
U-PVC pipe is one kind using polyvinyl chloride (PVC) resin as raw material, not the plastic pipe of plasticizer-containing.With chemistry
The development of industrial technology, it is already possible to produce the plate of nontoxic grade, not only have the performance of general polyvinyl chloride, and increase one
A little excellent properties, specifically it has the advantages that corrosion resistance and flexibility are good, thus especially suitable for water supply network.Due to
It is non-conductive, thus is not easy that electrochemical reaction occurs with acid, alkali, salt, and chemical stability increases, to substantially increase material
Heat resistance, acid and alkali resistance, salt, oxidant etc. corrosion, while anti-flammability is further improved, U-PVC have it is excellent after
Processing performance is also widely used in the fields such as chemical industry, environmental protection.
In the prior art, the common connection method of U-PVC is solvent gluing.Solvent gluing refers to, passes through plastics sheet
The solvent thaws pipeline and component of body material and the connection method for being integrated different piece gluing, method in the prior art,
It is easy to operate, light, under normal conditions without special equipment.Solvent gluing in connection type can according to circumstances or overlap joint glue
It is viscous, or docking gluing.It is usually used in the connection of the materials such as U-PVC.
However, causing intensity and leakproofness to drop since solvent adhesive is influenced by environment such as temperature, soda acids for a long time
Low, resistance to ag(e)ing is poor, is generally unsuitable for the connection of large-sized structural parts.
Therefore, the welding quality for how effectively improving U-PVC is that the technology that those skilled in the art need to solve at present is asked
Topic.
Apply for content
The purpose of the application is to provide a kind of chliorinated polyvinyl chloride U-PVC plate welding procedure, large-scale for realizing U-PVC plate
The welding of structural member improves welding quality, obtains higher tensile strength, plasticity, toughness, convenient for promoting the use of.
To achieve the above object, the application provides the following technical solutions:
A kind of chliorinated polyvinyl chloride U-PVC plate welding procedure, comprising the following steps:
Step S1: obtaining the first plate body and the second plate body of U-PVC material, welding rod is selected, and carry out welding preparation, to institute
It states the first plate body and opens up groove；
Step S2: setting welding gun outlet temperature configures tip, and first plate body and second plate body is carried out a little
Solid welding is fixed；
Step S3: using welding gun to welding rod and first plate body and second plate body by Hot-blast Heating, to institute
When stating welding rod with the temperature close of first plate body and second plate body, the welding rod and the groove are drawn close, it is right
The welding rod applies preset pressure, and the welding rod of softening part is pressed into the groove on slope and forms one layer of weld seam；
Step S4: the welding rod is cut off until welding terminates according to the mobile welding rod of pre-set velocity.
Preferably, in the step S1, the welding rod is U-PVC welding rod, and the welding rod is sub-thread welding rod, diameter 1.8-
2.2mm。
Preferably, in the step S1, the length of first plate body and second plate body is 280-320mm, width
For 130-170mm, with a thickness of 8-12mm.
Preferably, in the step S1, first plate body uses unilateral double V-groove, and bevel angle is 40-50 °, and institute
State the gap that 0.8-1.2mm is reserved between the groove of the first plate body and the surface of second plate body.
Preferably, when using multi-layer welding, first layer uses diameter for the U-PVC sub-thread welding rod of 1.8-2.2mm, welding
Temperature is 160-180 DEG C, and welding air quantity is 40~50L/min；Remainder layer uses diameter for the bifilar weldering of the U-PVC of 2.8-3.2mm
Item, welding temperature are 170-190 DEG C, and welding air quantity is 40~50L/min.
Preferably, the hot blast temperature that the welding gun provides is 170-190 DEG C.
Preferably, in the step S3 specifically:
When welding, the welding rod is fined away with set knife first, then slowly the welding rod is blown down in left and right with the welding gun, to institute
When stating welding rod and soften a little, then the even heat of interface of first plate body and second plate body is blown with the welding gun, to
It is close together when the welding rod is with the temperature close of first plate body and second plate body, the welding gun slowly adds again
Heat imposes stable preset pressure, and the welding rod of softening part is pressed into the groove on slope and forms one layer of weld seam, is added
The operation of heat, force, indentation groove is carried out continuously；The welding gun and welded article body angle at 45 °；Meanwhile operator observes U-
Whether the place after PVC welding electrode is taken over has sealing, if dry joint, when first plate body or second plate body do not melt
When, then be swung left and right speed and the forward speed of the welding gun are reduced, when first plate body or second plate body melted
When amount, then accelerate the speed of the welding gun.
Preferably, the pre-set velocity is 150~250mm/min, and the preset pressure is 4-8N.
Preferably, when first plate body is with a thickness of 10~20mm, the inclination angle of the tip and first plate
It is 30~45 degree, distance of the tip away from the weld seam is 5~6mm.
Preferably, when the diameter of welding rod is 1.8-2.2mm, the preset pressure that the welding rod applies the plate body is
4.5-5.5N；When the diameter of welding rod is 2.8-3.2mm, the welding rod is 6.5- to the preset pressure that the plate body applies
7.5N。
Chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein, comprising the following steps: step S1: U- is obtained
The first plate body and the second plate body of PVC material select welding rod, and carry out welding preparation, open up groove to first plate body；Step
Rapid S2: setting welding gun outlet temperature configures tip, and first plate body is carried out spot welding with second plate body and is fixed；Step
Rapid S3: using welding gun to welding rod and first plate body and second plate body by Hot-blast Heating, to the welding rod and institute
When stating the temperature close of the first plate body and second plate body, the welding rod and the groove are drawn close, the welding rod is applied
Add preset pressure, the welding rod of softening part is pressed into the groove on slope and forms one layer of weld seam；Step S4: according to pre-set velocity
The mobile welding rod cuts off the welding rod until welding terminates.Welding procedure provided herein, using hot wind to welding rod and
U-PVC plate body is heated, and realizes that the connection of two boards body can ensure that welding suitable for the welding of large-sized structural parts water tank
Quality obtains higher tensile strength, plasticity, toughness, convenient for promoting the use of.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of process of specific embodiment of chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein
Figure；
Fig. 2 is the structural schematic diagram of chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein；
Wherein: the first plate body of 1-, the second plate body of 2-.
Specific embodiment
The core of the application is to provide a kind of chliorinated polyvinyl chloride U-PVC plate welding procedure, large-scale for realizing U-PVC plate
The welding of structural member improves welding quality, obtains higher tensile strength, plasticity, toughness, convenient for promoting the use of.
In order to make those skilled in the art more fully understand application scheme, with reference to the accompanying drawings and detailed description
The application is described in further detail.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is that chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein is a kind of specific
The flow chart of embodiment；Fig. 2 is the structural schematic diagram of chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein.
In this embodiment, chliorinated polyvinyl chloride U-PVC plate welding procedure the following steps are included:
Step S1: obtaining the first plate body 1 and the second plate body 2 of U-PVC material, selects welding rod, and carry out welding preparation, right
First plate body 1 opens up groove；
Step S2: setting welding gun outlet temperature configures tip, and the first plate body 1 and the second plate body 2 are carried out a solid welding
It is fixed；
Step S3: using welding gun to welding rod and the first plate body 1 and the second plate body 2 by Hot-blast Heating, to welding rod and the
When the temperature close of one plate body 1 and the second plate body 2, welding rod and groove are drawn close, butt welding item applies preset pressure, softening portion
The welding rod divided, which is pressed into the groove on slope, forms one layer of weld seam；
Step S4: welding rod is cut off until welding terminates according to the mobile welding rod of pre-set velocity.
Specifically, in step S1, two pieces of U-PVC plate bodys of preparation, length and width dimensions are 300mm × 150mm, width 10mm,
Use unilateral double V-groove angle A for 45 °；Reserve 1 millimeter of gap；Dirt is removed before weldering；Welding rod is the U-PVC of sub-thread φ 2.0mm
Welding rod handles burr, scrapes off welding rod epidermis；In step S2, welding gun outlet temperature is set according to different materials before welding, according to weldering
Diameter, the corresponding tip of shape configuration, while two boards body being fixed by spot welding mode.
More specifically, in step S1, Leicester hot wind plastic welding gun PVC1600W can be used, carry out manual hot gas welding；Weldering
Connect material: welding gun is using heat gun, selection U-PVC welding rod, set knife, acetone, cotton balls, two blocks of soldered UPVC plates；Before weldering
Groove is cleared up, cannot be excessively smooth, polishing increases groove roughness, to enhance weld strength；Also, wlding keeps dry, board
Number correct, when carrying out multi-layer welding, the welding line joint of different layers must be staggered 100mm or more, to guarantee the equal of entire weld seam
Even property, hot blast temperature are preferably between 170~190 degree, but cannot make plastics coking or discoloration.
On the basis of the respective embodiments described above, in step S1, welding rod is U-PVC welding rod, and welding rod is sub-thread welding rod, diameter
For 1.8-2.2mm.
On the basis of the respective embodiments described above, in step S1, the length of the first plate body 1 and the second plate body 2 is 280-
320mm, width 130-170mm, with a thickness of 8-12mm.
On the basis of the respective embodiments described above, in step S1, the first plate body 1 uses unilateral double V-groove, and bevel angle is
40-50 °, and the gap a reserved between the groove of the first plate body 1 and the surface of the second plate body 2 is 0.8-1.2mm, preferably
1mm。
More specifically, as shown in Fig. 2, the first plate body 1 is preferably perpendicular to the second plate body 2, the first plate body 1 in processing
End can open up bevel or bilateral groove, and for bevel, multi-layer welding mode can be used, can for bilateral groove
Using single layer welding manner.
On the basis of the respective embodiments described above, the width b of root face is preferably 4-6mm, under the premise of guaranteeing bonding strength,
It reduces groove and opens up size.
On the basis of the respective embodiments described above, when using multi-layer welding, first layer uses diameter for 1.8-2.2mm's
U-PVC sub-thread welding rod, welding temperature are 160-180 DEG C, and welding air quantity is 40~50L/min；Remainder layer uses diameter for 2.8-
The bifilar welding rod of the U-PVC of 3.2mm, welding temperature are 170-190 DEG C, and welding air quantity is 40~50L/min.
Preferably, the first plate body 1 in the application and the second plate body 2 are U-PVC plate, and sub-thread diameter may be selected in welding rod
The UPVC welding rod for being φ 3.0 for the UPVC welding rod of φ 2.0 or bifilar diameter.
On the basis of the respective embodiments described above, the hot blast temperature that welding gun provides is 170-190 DEG C.
On the basis of the respective embodiments described above, in step S3 specifically:
When welding, welding rod is fined away with set knife first, then with welding gun, slowly welding rod is blown down in left and right, softens a little to welding rod
When, then the even heat of interface of the first plate body 1 and the second plate body 2 is blown with welding gun, to welding rod and the first plate body 1 and the second plate body 2
Temperature close when be close together, welding gun slowly heats again, impose stable preset pressure, softening part welding rod be pressed into
One layer of weld seam is formed in the groove on slope, heating, the operation of force, indentation groove are carried out continuously；Welding gun and welded article body at
45° angle degree；Meanwhile operator observes whether the place after U-PVC welding electrode is taken over has sealing, if dry joint, when the first plate body 1
Or second plate body 2 when not melting, then be swung left and right speed and the forward speed of welding gun are reduced, when the first plate body 1 or the second plate body 2
When melting excessive, then accelerate the speed of welding gun.
On the basis of the respective embodiments described above, pre-set velocity is 150~250mm/min, preset pressure 4-8N.Specifically
, pre-set velocity is preferably 150~250mm/s, and loosely, excessively slow then temperature is excessively high for too fast welding rod and the insufficient weldering of base material softening,
Plastics, colour changed into yellow, performance become fragile, intensity decline.
On the basis of the respective embodiments described above, when plate body is with a thickness of 10~20mm, the inclination angle of tip and plate is
30~45 degree, distance of the tip away from weld seam is 5~6mm.Specifically, the thickness t2 of the thickness t1 of the first plate body 1 and the second plate body 2
It may be the same or different.
On the basis of the respective embodiments described above, when the diameter of welding rod is 1.8-2.2mm, welding rod applies plate body pre-
If pressure is 4.5-5.5N；When the diameter of welding rod is 2.8-3.2mm, welding rod is 6.5- to the preset pressure that plate body applies
7.5N。
Preferably, when multilayer welding, first layer is preferably small with core diameter, general 2~2.5mm, the inclination angle of tip and base material: female
It is 30~45 degree when material 10~20mm of thickness, tip is away from 5~6mm of welding seam distance, and force: φ 2mm welding rod is 5N, φ 3mm welding rod
For 7N.Meanwhile when carrying out multi-layer welding, welding interlayer will be cleared up, and slag, burr are removed, and be cleared up when necessary using acetone.
In addition, dynamics used in operator is not easy to weigh very much when welding, too heavy operator is easy fatigue, is also not easy too gently,
It is not tight to be gently easy to appear very much welding, occurs being bonded loosely.
After welding, should also welding quality test, specifically, by appearance test, crimping excision inspection
It tests and crimping root bend test, does not find crackle, cracking phenomena, quality results meet TSG D2002-2006 code requirement i.e.
It can.
Welding procedure provided herein heats welding rod and U-PVC plate body using hot wind, realizes two boards body
Connection can ensure that welding quality suitable for the welding of large-sized structural parts water tank, obtain higher tensile strength, plasticity, tough
Property, convenient for promoting the use of.
Chliorinated polyvinyl chloride U-PVC plate welding procedure provided herein is described in detail above.Herein
Applying specific case, the principle and implementation of this application are described, and the explanation of above example is only intended to help
Understand the present processes and its core concept.It should be pointed out that for those skilled in the art, not taking off
Under the premise of from the application principle, can also to the application, some improvement and modification can also be carried out, these improvement and modification also fall into this
Apply in scope of protection of the claims.
Claims (10)
1. a kind of chliorinated polyvinyl chloride U-PVC plate welding procedure, which comprises the following steps:
Step S1: obtaining the first plate body (1) and the second plate body (2) of U-PVC material, selects welding rod, and carry out welding preparation, right
First plate body (1) opens up groove；
Step S2: setting welding gun outlet temperature configures tip, and first plate body (1) and second plate body (2) is carried out
Spot welding is fixed；
Step S3: passing through Hot-blast Heating to welding rod and first plate body (1) and second plate body (2) using welding gun, to
When the temperature close of the welding rod and first plate body (1) and second plate body (2), by the welding rod and the groove
It draws close, preset pressure is applied to the welding rod, the welding rod of softening part is pressed into the groove on slope and forms one layer of weld seam；
Step S4: the welding rod is cut off until welding terminates according to the mobile welding rod of pre-set velocity.
2. chliorinated polyvinyl chloride U-PVC plate welding procedure according to claim 1, which is characterized in that in the step S1,
The welding rod is U-PVC welding rod, and the welding rod is sub-thread welding rod, diameter 1.8-2.2mm.
3. chliorinated polyvinyl chloride U-PVC plate welding procedure according to claim 1, which is characterized in that in the step S1,
The length of first plate body (1) and second plate body (2) is 280-320mm, width 130-170mm, with a thickness of 8-
12mm。
4. chliorinated polyvinyl chloride U-PVC plate welding procedure according to claim 1, which is characterized in that in the step S1,
First plate body (1) uses unilateral double V-groove, and bevel angle is 40-50 °, and the groove of first plate body (1) with it is described
The gap of 0.8-1.2mm is reserved between the surface of second plate body (2).
5. chliorinated polyvinyl chloride U-PVC plate welding procedure according to any one of claims 1 to 4, which is characterized in that when
When using multi-layer welding, first layer uses diameter for the U-PVC sub-thread welding rod of 1.8-2.2mm, and welding temperature is 160-180 DEG C,
Welding air quantity is 40~50L/min；Remainder layer uses diameter for the bifilar welding rod of the U-PVC of 2.8-3.2mm, welding temperature 170-
190 DEG C, welding air quantity is 40~50L/min.
6. chliorinated polyvinyl chloride U-PVC plate welding procedure according to any one of claims 1 to 4, which is characterized in that institute
The hot blast temperature for stating welding gun offer is 170-190 DEG C.
7. chliorinated polyvinyl chloride U-PVC plate welding procedure according to any one of claims 1 to 4, which is characterized in that institute
It states in step S3 specifically:
When welding, the welding rod is fined away with set knife first, then slowly the welding rod is blown down in left and right with the welding gun, to the weldering
When item softens a little, then the even heat of interface of first plate body (1) and second plate body (2) is blown with the welding gun,
It is close together when the welding rod is with the temperature close of first plate body (1) and second plate body (2), the welding gun is again
It slowly heats, imposes stable preset pressure, the welding rod of softening part is pressed into the groove on slope and forms one layer of weldering
Seam, heating, the operation of force, indentation groove are carried out continuously；The welding gun and welded article body angle at 45 °；Meanwhile operator sees
Examine whether the place after U-PVC welding electrode is taken over has sealing, if dry joint, when first plate body (1) or second plate body
(2) when not melting, be then swung left and right speed and the forward speed of the welding gun are reduced, when first plate body (1) or described
When two plate bodys (2) melt excessive, then accelerate the speed of the welding gun.
8. chliorinated polyvinyl chloride U-PVC plate welding procedure according to any one of claims 1 to 4, which is characterized in that institute
Stating pre-set velocity is 150~250mm/min, and the preset pressure is 4-8N.
9. chliorinated polyvinyl chloride U-PVC plate welding procedure according to claim 8, which is characterized in that when first plate
Body (1) with a thickness of 10~20mm when, the inclination angle of the tip and first plate body (1) is 30~45 degree, the tip and
The distance of the weld seam is 5~6mm.
10. chliorinated polyvinyl chloride U-PVC plate welding procedure according to claim 9, which is characterized in that when the diameter of welding rod
When for 1.8-2.2mm, the welding rod is 4.5-5.5N to the preset pressure that the plate body applies；When the diameter of welding rod is 2.8-
When 3.2mm, the welding rod is 6.5-7.5N to the preset pressure that the plate body applies.
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2019
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|---|---|---|---|---|
| JPS6153026A (en) * | 1984-08-22 | 1986-03-15 | Tokai Rubber Ind Ltd | Method of joining crosspiece to thermoplastic resin belt |
| US20120148805A1 (en) * | 2007-04-05 | 2012-06-14 | Curtis Goad | Methods and Apparatus for Lining Process Tanks |
| CN106142539B (en) * | 2015-03-29 | 2018-12-14 | 上海车功坊智能科技股份有限公司 | Plastic parts of motor vehicle welding method |
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